<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" type="text/css" href="pageChange.css">
    <script src="pageChange.js"></script>
</head>
<body>
    <div class="control">
        <div class="item">  
            <div class="active">登录</div><div>注册</div>
        </div>
        <div class="content">
            <div style="display: block;">
                <p>账号</p>
                <input type="text" placeholder="username">
                <p>密码</p> 
                <input type="password" placeholder="password">
                <br>
                
                <input type="submit" value="登录">
            </div>
            <div>
                <p>用户名</p>
                <input type="text" placeholder="username">
                <p>密码</p>
                <input type="password" placeholder="password">
                <p>邮箱</p>
                <input type="text" placeholder="email">
                <br>
                <input type="submit" value="登录">
        </div>
    </div>
</body>
</html>